Four types of jade:
Type A - natural, untreated, undergoes a traditional process (plum juice washing and polishing with beeswax), no “artificial treatments” (e.g. high temperature or high-pressure treatments), “true” color.
Type B - Chemically bleached to remove impurities, injected with polymer with the use of a centrifuge to enhance translucency, covered with hard and clear plastic like coating, subject to instability and discoloration over time because polymer gets broken down by heat or household detergent, still 100% real jade with 100% natural color.
Type C - chemically bleached, dyed to enhance color, subject to discoloration over time due to reaction with strong light, body heat or household detergent Type D - Simulated, not jade(Quartz, Glass) made look like jade.
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